


Pure source code compilation and construction of apache+mysql+php development environment under linux_PHP tutorial
Record the entire process of the apache+mysql+php development environment that I compiled from source code under fedora core 1
Usually it is most convenient to install a server using rpm, and there is no need to consider too many configuration issues. You can easily get the environment you need. However, the problem of interconnected rpm packages is not so easy to solve.
It is relatively simple to compile and install the three applications apache, mysql, and php from source code. The configuration parameters are not complicated and there are not many dependencies. The system compiled from source code is also relatively stable, making it easier to build in the future. Patches and upgrades work.
The prerequisite for compilation and installation is that the system has installed the corresponding compilation tools. Generally, when installing the system, I choose to customize the system and only select the development tool kit, and do not install all other software packages. . If you do not choose to install all development tools, you need to install at least the following rpm packages
autoconf-2.57-3.noarch.rpm
automake-1.7.8-1.noarch.rpm
binutils -2.14.90.0.6-3.i386.rpm
bison-1.875-5.i386.rpm
byacc-1.9-26.i386.rpm
cpp-3.3.2-1.i386.rpm
flex-2.5.4a-30.i386.rpm
gcc-3.3.2-1.i386.rpm
gcc-c++-3.3.2-1.i386.rpm
glibc-devel -2.3.2-101.i386.rpm
glibc-headers-2.3.2-101.i386.rpm
glibc-kernheaders-2.4-8.36.i386.rpm
libstdc++-devel-3.3.2 -1.i386.rpm
m4-1.4.1-14.i386.rpm
The steps are described below
1. Mysql installation
Download a target version
tar -xzvf mysql-4.0. xx.tar.gz
cd mysql-4.0.xx
./configure --prefix=/usr/local/mysql make
make install
In the support-files directory, select an appropriate .cnf file, cp to /etc/my.cnf
cd /usr/local/mysql/bin
. /mysql_install_db
../share/mysql/mysql.server start
./mysqladmin -uroot password 'xxxx' ./mysql -uroot -p Try to log in to mysql, There should be no problem
The file mysql.server can be copied to the /etc/rc.d/init.d directory and set to automatically start the mysql service when the system starts
2. Apache installation
Download A target version
tar -xzvf httpd-2.0.xx.tar.gz
cd httpd-2.0.xx
./configure --prefix=/usr/local/apache --enable-so make
make install
cd /usr/local/apache/conf
Modify httpd.conf, because you need to configure php later, you can set it up briefly here, mainly configuring User ,Group,ServerName,DocumentRoot,DirectoryIndex parameters are enough

TomakePHPapplicationsfaster,followthesesteps:1)UseOpcodeCachinglikeOPcachetostoreprecompiledscriptbytecode.2)MinimizeDatabaseQueriesbyusingquerycachingandefficientindexing.3)LeveragePHP7 Featuresforbettercodeefficiency.4)ImplementCachingStrategiessuc

ToimprovePHPapplicationspeed,followthesesteps:1)EnableopcodecachingwithAPCutoreducescriptexecutiontime.2)ImplementdatabasequerycachingusingPDOtominimizedatabasehits.3)UseHTTP/2tomultiplexrequestsandreduceconnectionoverhead.4)Limitsessionusagebyclosin

Dependency injection (DI) significantly improves the testability of PHP code by explicitly transitive dependencies. 1) DI decoupling classes and specific implementations make testing and maintenance more flexible. 2) Among the three types, the constructor injects explicit expression dependencies to keep the state consistent. 3) Use DI containers to manage complex dependencies to improve code quality and development efficiency.

DatabasequeryoptimizationinPHPinvolvesseveralstrategiestoenhanceperformance.1)Selectonlynecessarycolumnstoreducedatatransfer.2)Useindexingtospeedupdataretrieval.3)Implementquerycachingtostoreresultsoffrequentqueries.4)Utilizepreparedstatementsforeffi

PHPisusedforsendingemailsduetoitsbuilt-inmail()functionandsupportivelibrarieslikePHPMailerandSwiftMailer.1)Usethemail()functionforbasicemails,butithaslimitations.2)EmployPHPMailerforadvancedfeatureslikeHTMLemailsandattachments.3)Improvedeliverability

PHP performance bottlenecks can be solved through the following steps: 1) Use Xdebug or Blackfire for performance analysis to find out the problem; 2) Optimize database queries and use caches, such as APCu; 3) Use efficient functions such as array_filter to optimize array operations; 4) Configure OPcache for bytecode cache; 5) Optimize the front-end, such as reducing HTTP requests and optimizing pictures; 6) Continuously monitor and optimize performance. Through these methods, the performance of PHP applications can be significantly improved.

DependencyInjection(DI)inPHPisadesignpatternthatmanagesandreducesclassdependencies,enhancingcodemodularity,testability,andmaintainability.Itallowspassingdependencieslikedatabaseconnectionstoclassesasparameters,facilitatingeasiertestingandscalability.

CachingimprovesPHPperformancebystoringresultsofcomputationsorqueriesforquickretrieval,reducingserverloadandenhancingresponsetimes.Effectivestrategiesinclude:1)Opcodecaching,whichstorescompiledPHPscriptsinmemorytoskipcompilation;2)DatacachingusingMemc


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